5 #include "compiler/compiler.h"
11 #include "lib/gauss.h"
13 /* Forward declarations */
14 struct zoned_block_device_info;
18 * The type of object we are working on
21 FIO_TYPE_FILE = 1, /* plain file */
22 FIO_TYPE_BLOCK, /* block device */
23 FIO_TYPE_CHAR, /* character device */
24 FIO_TYPE_PIPE, /* pipe */
28 FIO_FILE_open = 1 << 0, /* file is open */
29 FIO_FILE_closing = 1 << 1, /* file being closed */
30 FIO_FILE_extend = 1 << 2, /* needs extend */
31 FIO_FILE_done = 1 << 3, /* io completed to this file */
32 FIO_FILE_size_known = 1 << 4, /* size has been set */
33 FIO_FILE_hashed = 1 << 5, /* file is on hash */
34 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
35 FIO_FILE_axmap = 1 << 7, /* uses axmap */
36 FIO_FILE_lfsr = 1 << 8, /* lfsr is used */
37 FIO_FILE_smalloc = 1 << 9, /* smalloc file/file_name */
47 * How fio chooses what file to service next. Choice of uniformly random, or
48 * some skewed random variants, or just sequentially go through them or
52 FIO_FSERVICE_RANDOM = 1,
55 __FIO_FSERVICE_NONUNIFORM = 0x100,
56 FIO_FSERVICE_ZIPF = __FIO_FSERVICE_NONUNIFORM | 4,
57 FIO_FSERVICE_PARETO = __FIO_FSERVICE_NONUNIFORM | 5,
58 FIO_FSERVICE_GAUSS = __FIO_FSERVICE_NONUNIFORM | 6,
60 FIO_FSERVICE_SHIFT = 10,
64 * No pre-allocation when laying down files, or call posix_fallocate(), or
65 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
67 enum fio_fallocate_mode {
68 FIO_FALLOCATE_NONE = 1,
69 FIO_FALLOCATE_POSIX = 2,
70 FIO_FALLOCATE_KEEP_SIZE = 3,
71 FIO_FALLOCATE_NATIVE = 4,
72 FIO_FALLOCATE_TRUNCATE = 5,
76 * Each thread_data structure has a number of files associated with it,
77 * this structure holds state information for a single file.
80 struct flist_head hash_list;
81 enum fio_filetype filetype;
91 * filename and possible memory mapping
93 unsigned int major, minor;
98 * size of the file, offset into file, and io size from that offset
99 * (be aware io_size is different from thread_options::io_size)
101 uint64_t real_file_size;
102 uint64_t file_offset;
105 struct fio_ruhs_info *ruhs_info;
108 * Zoned block device information. See also zonemode=zbd.
110 struct zoned_block_device_info *zbd_info;
111 /* zonemode=zbd working area */
112 uint32_t min_zone; /* inclusive */
113 uint32_t max_zone; /* exclusive */
116 * Track last end and last start of IO for a given data direction
118 uint64_t last_pos[DDIR_RWDIR_CNT];
119 uint64_t last_start[DDIR_RWDIR_CNT];
121 uint64_t first_write;
125 * Tracks the last iodepth number of completed writes, if data
126 * verification is enabled
128 uint64_t *last_write_comp;
129 unsigned int last_write_idx;
132 * For use by the io engine to store offset
137 * For use by the io engine for private data storage
142 * if io is protected by a semaphore, this is set
145 struct fio_sem *lock;
146 struct fio_rwlock *rwlock;
150 * block map or LFSR for random io
153 struct axmap *io_axmap;
154 struct fio_lfsr lfsr;
158 * Used for zipf random distribution
161 struct zipf_state zipf;
162 struct gauss_state gauss;
166 enum fio_file_flags flags;
168 struct disk_util *du;
171 #define FILE_ENG_DATA(f) ((f)->engine_data)
172 #define FILE_SET_ENG_DATA(f, data) ((f)->engine_data = (data))
174 #define FILE_FLAG_FNS(name) \
175 static inline void fio_file_set_##name(struct fio_file *f) \
177 (f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name); \
179 static inline void fio_file_clear_##name(struct fio_file *f) \
181 (f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
183 static inline int fio_file_##name(struct fio_file *f) \
185 return ((f)->flags & FIO_FILE_##name) != 0; \
189 FILE_FLAG_FNS(closing);
190 FILE_FLAG_FNS(extend);
192 FILE_FLAG_FNS(size_known);
193 FILE_FLAG_FNS(hashed);
194 FILE_FLAG_FNS(partial_mmap);
195 FILE_FLAG_FNS(axmap);
197 FILE_FLAG_FNS(smalloc);
201 * File setup/shutdown
204 extern void close_files(struct thread_data *);
205 extern void close_and_free_files(struct thread_data *);
206 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
207 extern int __must_check setup_files(struct thread_data *);
208 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
212 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
213 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
214 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
215 extern int __must_check generic_prepopulate_file(struct thread_data *, struct fio_file *);
219 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
220 extern bool __must_check pre_read_files(struct thread_data *);
221 extern unsigned long long get_rand_file_size(struct thread_data *td);
222 extern int add_file(struct thread_data *, const char *, int, int);
223 extern int add_file_exclusive(struct thread_data *, const char *);
224 extern void get_file(struct fio_file *);
225 extern int __must_check put_file(struct thread_data *, struct fio_file *);
226 extern void put_file_log(struct thread_data *, struct fio_file *);
227 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
228 extern void unlock_file(struct thread_data *, struct fio_file *);
229 extern void unlock_file_all(struct thread_data *, struct fio_file *);
230 extern int add_dir_files(struct thread_data *, const char *);
231 extern bool init_random_map(struct thread_data *);
232 extern void dup_files(struct thread_data *, struct thread_data *);
233 extern int get_fileno(struct thread_data *, const char *);
234 extern void free_release_files(struct thread_data *);
235 extern void filesetup_mem_free(void);
236 extern void fio_file_reset(struct thread_data *, struct fio_file *);
237 extern bool fio_files_done(struct thread_data *);
238 extern bool exists_and_not_regfile(const char *);
239 extern int fio_set_directio(struct thread_data *, struct fio_file *);
240 extern void fio_file_free(struct fio_file *);